Sökning: "Rocket Science"

Visar resultat 1 - 5 av 17 uppsatser innehållade orden Rocket Science.

  1. 1. Investigation of Antenna Radomes in Low Earth Orbits

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Mathias Manohar Gren; [2023]
    Nyckelord :Materials; Science; Space; Satellites; Antenna Radomes; Beyond Gravity; Coatings; Physics; Chemistry; Low Earth Orbits; Engineering; Lunds University; Materials Chemistry; Technology and Engineering;

    Sammanfattning : Introduction: This master’s thesis focuses on exploring improved alternative material solutions for antenna radomes used to protect Beyond Gravity Sweden’s satellite antennas in low Earth orbits. Background: As the environment in low Earth orbit is harsh, surface materials on satellites experience high levels of atomic oxygen, ultra violet radiation, thermal-fluctuation, charged particles and micro meteoroids. LÄS MER

  3. 2. Att öka skolviljan är väl ingen rocket science, eller? En studie om hur ungdomar beskriver de förhållanden och interaktioner som gynnar skolnärvaro

    Kandidat-uppsats, Lunds universitet/Socialhögskolan

    Författare :Marie Bäckström Petersson; Luisa Gambadori; [2022]
    Nyckelord :Social Sciences;

    Sammanfattning : School compliance is affected by several interactions and circumstances according to young people. Previous research has mostly limited its focus on the underlying reasons of school refusal and school truancy; researchers have primarily gathered information and data from observations, literature studies or by interviewing professionals. LÄS MER

  4. 3. Fluid flow features in swirl injectors for ethanol fueled rocket : - Analysis using computational fluid dynamics

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Emil Vejlens; Dylan De Jourday; [2022]
    Nyckelord :Fluid Mechanics; Rocket Science; Fuel injectors; Computational Fluid Dynamics; Swirling Flows; Fuel Mixing;

    Sammanfattning : A swirl injector for a rocket engine being developed by \emph{AESIR} (Association of EngineeringStudents in Rocketry) was simulated with different geometric parameters. The swirl injector is usedto atomize the ethanol used as fuel and to create a spray that mixes well with the oxidizer withinthe combustion chamber. LÄS MER

  5. 4. Centrifugal Turbopumps - Flow Physics and Modelling

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Carl Eriksson; Hampus Henåker; [2021]
    Nyckelord :Centrifugal Pumps; Rocket Science; Turbopumps; Two-Zone Model; Impeller; Vaneless Diffuser; Vaned Diffuser; Technology and Engineering;

    Sammanfattning : Choices made in the early stages of a design process are crucial. They dictate many of the limitations and freedoms the designer has in later stages of the design. Informed decisions are therefore crucial at this stage. LÄS MER

  7. 5. Robust Booster Landing Guidance/Control

    Master-uppsats, KTH/Optimeringslära och systemteori

    Författare :Ugurcan Çelik; [2020]
    Nyckelord :Booster; Rocket; Reusable; Stage; Vertical; Landing; Auto-Pilot; Guidance; Control; Navigation; Reinforcement Learning; Robust; Optimization; Optimal Control; Uncertainty Analysis; Booster; raket; återanvändbar; scen; vertikal; landning; autopilot; ledning; kontroll; navigering; förstärkningsinlärning; robust; optimering; optimal kontroll; osäkerhetsanalys;

    Sammanfattning : The space industry and the technological developments regarding space exploration hasn’t been this popular since the first moon landing. The privatization of space exploration and the vertical landing rockets made rocket science mainstream again. LÄS MER